Stomatella snail - CUC - Clean up crew critter
These little snails are interesting little clean up crew (CUC) critters that can multiply in your tank. They are often between 1/4" to 1/2" long, but can get as long as 1" in some situations. You will sometimes see them spawning after a water change or other chemical change to the water in your tank. They will eat algae off your glass and rock in your tank.
Jake Adams, "Stomatella snails are worth so much more than all the other so called clean up crew. I go out of my way to really spread them around when I start up a tank. " Mark van der Wal, "I noticed there was a stomatella snail on the Two Little Fishies clip and I was screaming with excitement!". (Reef Therapy by Reef Builders Episode #54 pt.1)
This item is a "stock item" meaning the snails you receive may not be the exact ones in the images, but it will be similar in appearance. Approximate size range may also vary between individual specimens.